Use the form below to do your conversion.
Solution
Step1
Log215665=Log(5665) ÷ Log(21)
Log(5665)= 3.7531999141994
Log(21)=1.3222192947339
Log215665=3.7531999141994 ÷ 1.3222192947339
Ans=2.8385608417208
Step2
Alternatively, the logarithm can be calculated like this.